Wrench



L. D. LEWIS.

WRENCH.

APPLICATION FILED DEC-4, 1918.

1,363,135. Patented Dec. 21, 1920.

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Wilnesses. s am 1, K1 leefllen PATENT Ui 'FlCE.

LEE D. LEVIIS, OE TULSA, OKLAHOTIEA.

WRENCH.

Application filed. December 4, 1918.

To all whom it may concern.

Be it known that I, Len D. LEwIs, a citizen of the United States,residing at Tulsa, in the county of Tulsa and State of Oklahoma, haveinvented new and useful Improvements in Wrenches, of which the followingis a specification.

This invention relates to wrenches and has for its object the provisionof a wrench capable of being easily and quickly adjusted and when soadjusted will be held securely in position.

Another object of the invention is to provide a wrench of the monkeytype having a stationary jaw and a movable jaw and a shank extendingfrom each of said jaws, with means to permit of a quick and readylocking and unlocking of the movable jaw, so as to readily adjust thewrench for use.

A further object of the invention is to provide a wrench of thischaracter which consists of a minimum number of parts, so constructed asto be readily taken apart or assembled, so as to obtain access to theoperating parts of the wrench and to reduce its cost of manufacture.

Other objects and advantages of the invention will appear as thefollowing description is read in connection with theaccompanyingdrawings In the'drawings Figure 1 is a side elevation of awrench constructed in accordance with the present invention;

Fig. 2 is a longitudinal sectional view;

Fig. 3 is a cross sectional view on the line 3-3 Fig. 2 illustrating themanner of securing the locking member or handle upon the wrench;

Fig. 4 is a detail perspective view of the outer end of the shank of thestationary jaw; and

Fig. 5 is a similar view of the rotatable handle.

Referring to the drawings in detail, like characters of reference denotecorresponding parts throughout the several views.

The wrench as illustrated in the accompanying drawings includes a jaw10, which will be hereinafter referred to as the stationary jaw, a jaw11, hereinafter referred to as the movable jaw. Both the jaws 10 and 11have extending therefrom shanks 12 and 13 respectively, the formerpassing through an opening 14 formed in the movable jaw as is usual inwrenches of this type.

Specification of Letters Patent.

Patented Dec. 21, 1920.

Serial No. 265,269.

The opposite end of the shank 12 is substantially cylindrical and islongitudinally grooved as shown at 15, to provide opposite side flanges16 which act as a guide for the end of the shank 13, tae latter beingmovable in the roove 15.

The adjacent faces of the ends of the shanks 12 and 13 are formed withteeth 17 and 18 respectively, which are adapted to engage one anotherand to be held in such engagement through the medium of means to bepresently described. The teeth 17 and 18 are disengaged through theaction of a spring 19 carried by the shank 13 and bearing against theopposed face of the shank 12.

Rotatably mounted upon the ends of the shanks 12 and 13 is a sleeve 20,the latter forming a hand grip for the wrench. This sleeve is heldagainst displacement through the medium of a pin 21, which passesthrough an opening 22 in the end of the shank 13 and engages oppositelydisposed segmental slots 23 formed in the sleeve or hand grip 20. Thispermits of limited rotation of the sleeve upon the shanks 12 and 13, butacts to prevent relative longitudinal movement of the sleeve and shanks.The inner periphery of the sleeve is provided with a longitudinallydisposed groove 24, which extends throughout its length and is ofsufficient width and depth to permit of a limited movement of the shanks12 and 13 under the influence of the spring 19, so that when the saidsleeve is rotated and the shank 13 of the jaw 11 enters the groove 24;,the teeth 17 and 18 will become disengaged and free movement of the jaw11 is then possible. in order to lock the jaw 11 against movement thesleeve is rotated until the shank 13 is disengaged from the groove 24,whereupon the inner cylindrical periphery of the sleeve will move theshank 13 toward the shank 12 and cause a locking engagement of theteeth.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is re served to makesuch changes.

Having described the invention, what is claimed is A wrench comprising ashank having a jaw rigidly mounted upon one end thereof, a cylindricalenlargement provided at the opposite end of the shank and having alongitudinally disposed groove therein, a second jaw slidably mountedupon the shank, a shank extending from the slidably mounted

